sechel, you need to absorb the idea that shulchan aruch harav is one of many respectable seforim over last several centuries. If this happen to be your group’s leader – gezunte heig, learn it more than Mishna Berura, but there is no reason to look for a conspiracy of other people not focusing on it. If you want others interested in your Torah – behave and talk in a way that other people want to emaulate your ways…
Historically, chasidim separated from ashkenazim of their time, change minhagim, weakened kahal, diverted taxes through separate shechita, etc. So, it would not be reasonable for you to demand that others follow your opinions. You can ask or persuade, but not demand.